Stand-valve for oil-well pumps.



G. W. SLAUGHTER, 1n. TAND VALVE FOR OIL WELL PUMPS EFT. 20. 19 7.1,279,599. Patented Sept. 24,1918.

I as nru' GEORGE W. SLAUGHTER, 33., Oil? SOURLAKE, TEXAS, ASSIGNOR OFONE-HALF TO LEE are WILKINSON, O SQURL'AKE, TEXAS.

STAND-VALVE FOR OIL-WELL P UMPS.

Specification of Letters Patent. Patented. Sept. 24, 19180 a Applicationfiled September 20, 1917. Serial No. 192,382.

To all whom it may concern Be it known that I, Gnonon W. SLAUGH- rnn,J12, a citizen. of the United States, residing at Sourlake, in thecounty of Hardin and State of Texas, have invented a new use fulStand-Valve for Oil-Well Pumps, of which the following is aspecification. I The/device forming the's ubject matter of thisapplication is a ball seatadapted to be used in an oil well pump.

By way of explanatlon it may be stated that, in devices of this kind,considerable difiiculty has been experienced heretofore, on account ofthe fact that the ball seat works loose. The present invention,therefore, aims to provide novel means whereby the seat may be heldsecurely in place. Another object of the invention is so to constructcertain. parts of the structure, that, at the will of an operator, theycan be turned end for end, thereby materially lengthening the workinglife of the said parts.

It is within the province of the disclosure to improve generally and toenhance theutility of devices of that type to which the presentinvention appertains.

With the above and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement ofparts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope of what is claimed, without departing from the spirit of theinvention.

In the accompanying drawings Figure 1 shows in longitudinal section, astructure constructed in accordance with the present invention, partsappearing in elevation; v i

Fig. 2 is a cross section on the line 2-2 of Fig. 1;

Fig. 3 is a cross section on the line 33 0f Fig. 1.

In the drawings, the device hereinatter claimed is shown as comprising atubular body 1 provided at its upper end with a 1511- The bore 5 beenflaring extension 7 COII1- municating with a cylindrical threaded socket8.

The numeral 9 denotes a nipple having threaded tapered ends 10, eitherone of wvhich may be threaded into the tapered socket 2 of the body 1.At its ends,-the nippie 9 is supplied with tapered sockets 11,connected, by means of tapered bores 12,

with the main bore 14, ofthevnipple 9. In

its interior, the nipple 9 is supplied with projections 15, locatedintermediate the ends of the nipple and projecting into the main bore14L thereof.

The numeral 16 denotes a tubular'valve seat, the ends 17 of which aretapered and threaded, so that either ofthe said ends may be engaged withone of the tapered sockets 11 of the nipple 9, as shown in Fig. 1. Intermediate its ends, the tubular seat 16 is supplied with a, laterallyprojecting flange 18 which, as shown in 2, may be of hexagonal form, tofacilitate ,theturning 0f\ the seat 16 by means of a wrench.

The

flange 18 may abut against the shoulder 6 as shown in Fig. l of thedrawings.

A ball valve 19 is supported on the upper end of the seat 16, within thebore 14: of the nipple 9, and lies below the projections 15, which actas stops for the ball valve.

Ordinarily, the flange 18 abuts against the shoulder 6 and is boundfinnly-thereagainst when the'nipple 9 is advanced into the body 1. Inorder, however, to prevent positively, a rotation of the seat 16 and aconsequent loosening thereof, clamping means, such as set screws 20, maybe threaded into the body 1, the set screws bearing against theedge ofthe flange 18 of the seat 16.

The device hercinbefore described, is so constructed that the seat 16will be held securely in place. It is possible, however, to take thestructure apart readily, to permit a renewing of the ball valve 19, andsince the elements 16 and 9 are tapered at both ends, a reversal ofthese parts, and a conscquent lengthening of their working life, ispossible.

Having thus described the invention, what is claimed is:

1.. In a device of the class described, a

body having a tapered socket and provided with an internal shoulder;

a nipple having like tapered ends, one of which is threaded into thesocket, the nipple having a bore pro- Yidecl at its ends with liketapi-z'l-il sockets, the nipple being supplied intermediate its endswith a projection exl'enllwl into the bore; a seat liming: like taperedends. one of which is threaded into one seeker.- of the nipple, the seathaving a flange engaging Lhe shoulder; and a ball valve supported on theseat and located in the bore of the nipple,

below the projection.

2.111 a device of the class llvstlllmfl, a

l'mdy having a tapered soelcel'; a nipple having like tapered ends, oneof \'\'lll('ll is threaded info ihe socket, lhe nipple having a borepi'nviilml at ills ends \x'ilh like tapered sockets, l'he nipple beingsupplied intermediate il's ends Willi n plujei-linn exlen le l into thebore; a seal having like lu wi'eil'ends. One of which is threaded intn(m0 seeker ol l'he nipple; a hull valve supported on \he sent anlllocated in the here of the nipple below lhe. pmjeetinn; and :1(lilllllllllg means (ill'l'llll hy lhe hell and engaging lhe sealinlei'nw- (llHlO (he ends l'hei'eul'. .ln lesl'in ony lhnl l l'lillllllhu l m'egning as my own. I have hereto nllimwl my sig'lnv llll'( in thepron-nunl' um wilmwes.

(llXlllGlC li.\l'( lll'lllll, .lu. \l'ilnesses:

llnm lli nxniln, (I. T. S'JU'IZ.

